Study of the High Spin States of Stable <SUP>84</SUP>Sr

Han Guangbing; Wen Shuxian; Liu Xiangun; Wu Xiaoguang; Li Guangsheng; Yuan Guanjun; Weng Peikun; Yang Chunxiang; Ma Yingjun; Lu Jingbin

Chinese Physics C> 1999, Vol. 23> Issue(7) : 601-606

Study of the High Spin States of Stable ⁸⁴Sr

Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 1024131 Department of Physics, Jilin University, Changchun 130023

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Abstract：
High spin states of ⁸⁴Sr were populated by bombarding, ⁷⁰Zn target with 75MeV ¹⁸O beam provided by HI-13 Tandem Accelerator of CIAE. γ-γ coincidences and DCO ratios were measured using eight anticompton Ge detectors and one planar. A new level scheme of ⁸⁴Sr was established in which 12 new energy states and nearly 30 new γ-transitions were identified in present work. Level scheme was compared with its even-even isotopes ^78,80,82,86Sr. It shows that ⁸⁴Sr is a transitional nucleus, namely its ground state band exhibits a collective nature. The negative bands were extended to spin of 19^－ and the γ-transition energies take on the nature of stagger. The negative band levels are in good agreement with D.C.M. theory caculations.

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Han Guangbing, Wen Shuxian, Liu Xiangun, Wu Xiaoguang, Li Guangsheng, Yuan Guanjun, Weng Peikun, Yang Chunxiang, Ma Yingjun and Lu Jingbin. Study of the High Spin States of Stable ⁸⁴Sr[J]. Chinese Physics C, 1999, 23(7): 601-606.

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Received: 1998-05-05
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of the High Spin States of Stable ⁸⁴Sr

Corresponding author: Han Guangbing,

Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 1024131 Department of Physics, Jilin University, Changchun 130023

Received Date: 1998-05-05

Accepted Date: 1900-01-01

Available Online: 1999-07-05

Abstract: High spin states of ⁸⁴Sr were populated by bombarding, ⁷⁰Zn target with 75MeV ¹⁸O beam provided by HI-13 Tandem Accelerator of CIAE. γ-γ coincidences and DCO ratios were measured using eight anticompton Ge detectors and one planar. A new level scheme of ⁸⁴Sr was established in which 12 new energy states and nearly 30 new γ-transitions were identified in present work. Level scheme was compared with its even-even isotopes ^78,80,82,86Sr. It shows that ⁸⁴Sr is a transitional nucleus, namely its ground state band exhibits a collective nature. The negative bands were extended to spin of 19^－ and the γ-transition energies take on the nature of stagger. The negative band levels are in good agreement with D.C.M. theory caculations.

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Study of the High Spin States of Stable 84Sr

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Study of the High Spin States of Stable 84Sr

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Study of the High Spin States of Stable ⁸⁴Sr

Study of the High Spin States of Stable ⁸⁴Sr